sorensen



. 4 Sheetsf-Sheet 1. N. ORENSEN.

L 0R LATGH.

(Model.)

Patented Apr. l5, 1890.

Figi.

M a 1. f o e N. G. SRENSEN.

. 1.00K v0R LATCH. N0. 425,707.

4 Sheets-Sheet 2.

Patented Apr. 15, 1890.

(Model.) 4 SheetsSheet 3. N. G. SORENSBN.

LOCK 0R LATCH.

Patented Apr. 15, 1890.

(Modell) Y 4 sneets-sheet 4.

l N. G. SRENSBN.

LUGK'OR LATGH.

Patented Apr. 15, 1890.

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fue noms nuns cu., moro-urne., wAsmmm, u. c.

UNITED STATES (PATENT OFFICE. 4

NIELS GEORG SRENSEN, OF STOCKHOLM, SYSTEDEN.

LOCK OR LATCH.

SPECIFICATION forming part of Letters Patent No. 425,707, dated April 15, 1890. Application filed July 20, 1889. Serial No. 318.1571. (Model.)

To @ZZ whom, it may concern,.-

Be it known that I, NIELs GEORG SEEN- SEN, a subject of the King of Sweden, and a resident of Stockholm, Sweden, have invented certain Improvements in Locks or Latches,

of which the following is a specification.

My invention relates to locks or latches, and especially to such locks or latches as have gravity-bolts; and the principal object of my invention is to provide means for retaining the bolt in its locking position in its eye or socket in whatever position the article to which the lock is applied may be placed, thus preventing unauthorized persons from withdrawing the bolt by inverting or shifting the position of the article, or by similar methods.

My invention comprises, also, other features, that will be hereinafter described.

In the accompanying drawingsl have shown my improvements embodied in several forms of locks and latches.

Figure 1 is a vertical section through the casing of a mortise-lock embodying my improvements; and Fig. 2 is a transverse section of the lock, taken on the line in Fig. 1. Figs. 3, 4, 5, and 6 illustrate another embodiment of my invention in a lock. Fig. 3 is a vertical section through the lock-casing; Fig. 4, a horizontal section on line y y in Fig. 3; Fig. 5, a horizontal section on line -y y in Fig. 3, and Fig. -6 is a front elevation. This lock is adapted for use on drawers and the like. Figs. 7 and 8 illustrate thejapplication of my improved lock to the tail-board of -a vehicle, Fig. 7 being a sectional elevation, and Fig. S a front elevation, of that portion of the vehicle on which the lock is mounted. Figs. 9 and 10 illustrate the application of my lock to sliding doors, Fig. 9 being a front elevation of the doors, and Fig. 10 a horizontal section on line a s in Fig. 9. Figs. 11, 12, 13, and 14 illustrate my improved adjustable eye or socket, Fig. 11 being a side elevation, partly in section, and Fig. 12 a front view. Figs. 13 and 14 show the washer or distance-piece de tached.

Referring to Figs. 1 and 2, A is the lockcasing. B is a portion of lthe part in which the lock is mounted. C is a'portion of the jamb or door-post. D is the eye or socket which receives the bolt of the lock, and E is the key for operating the lock. a is the bolt, which is arranged to slide freely up and down in a compartment l) in the casing A. c c are apertures provided in the wall of the compartment l). CZ is a slot formed in the bolt a. Through the aperture c and into the slot cl extends the free extremity of a lever e, firmly attached to or forming a part of a boss f, into a square or other suitably-formed hole or recess in which ts the spindle of the handle or handles. The extremity of the lever e forms the point of support for the bolt a. h is a weight pivoted at h to the casing A and arranged to bear against a projection upon the lever e in such a manner that the said lever e will be normally retained in its lowest position-that is to say, that position in which the bolt and the handle or handles on the said spindle g are in the locking position. A suitable stop or stops is in some instances provided for limiting the downward movement of the lever e. Then the door is open, the lbolt CL is in its lowest position, and the lower end of said bolt is beveled or cut away, so that when the door is closed the bolt, by reason of the wedge-like action of the beveled portion, will be raised so as to pass over the edge of the eye or socket D, which is in the path of the bolt a, and to drop into the recess in said socket. c' e' are' tumblers, which are pivoted at t" to the casing A. The tumblers i are provided with arms or extensions 122, which, when the said tumblers are not held up by the key, as hereinafter described, extend through the aperture c in the casing` A, so that when the door is closed they will engage with a notch d in the bolt a. t3 are projections upon the extremities of the arms or extensions i2, intended to prevent the latter from engaging too deeply in said notch d. It will be seen that'it is impossible to lift the bolt a without previously disengaging the arms or extensions z2 of the tumblers 1l from the notch d. j is a stop for limiting the extent of the turning movement of the key E and the play of the tumblers 'L' so as to render it impossible, under any circumstances, to introduce the key F..

vBy turning the key so as to raise the tumblers c' the latter can be disengaged and the bolt a becomes free. Suitable wards or guards may be provided on the tumblers t and in the casprovision for preventing the opening of the lock by inverting or turning upside down the article to which it is attached. 7c la are suit able catches pivoted at 7a2 to the casing A. rlhe said catches 7c 7o are combined with stops Z, which limit their movement and normally retain them in such a position that the bolt a. can be freely raised through the medium of the key E.` Should the lock be turned upside down, the catches k 7c will turn about their pivots by reason of their weight and assume the position indicated by the dotted` lines, Fig. 3, thus entering the path ofthe bolt a. and preventing the latter from falling.

back even should the tumbler t' be liberated or disengaged from the bolt a. on thelock being inverted. m m are the other stops for e limiting the movement of the side-catches k k when displaced in the manner above described. 'lhe slot or recess d in the'bgolt a serves in this case for the engagement of the tumbler fi, (one tumbler only being employed i improved lock adapted for use `7 and 8 `the lock-casing A -is attached in the arrangement .shown,) and also for the insertion `of the key E, yby means of which the tumblers 'i may be first disengaged and the bolt a raised. I provide, moreover, for enabling the tumbler z', when desired, to be iixed or retained in a position out of engagement with the bolt a. For this purpose I employ a pin fn, which passes through a hole in the case A and the extremity of which is adapted to engage in a hole "nl, provided in the said tumbler in such a position that 'the latter will be retained out of engagement with the bolt a.. ois another pin, the extremity of which also passes through a hole in the casing A, and is adapted to engage .or enter a hole o in the bolt a, Vthus serving to fix or retain the bolt in its raised position, and permitting the drawer or other article to which the lock is attached to be opened and closed freely. The pins n and o extend through the key-plate o, and are provided with suitable knobs or handles by means of which they may be operated from the exterior. The said pins can' only be inserted'in the hole 'n' in the tumbler or into the hole o in the bolt a when the said bolt is raised by the tab of the key E. A

Figs. 7 to lO illustrate a modilication of my on trap and sliding doors :for railway-carriages and the like. In the first arrangement shown in Figs. to the nut for both the screws s.

fixed frame,I 1J of the carriage, while the socket D is' placed on the trap or doorqywhich is arranged to turn about its lower edge upon suitable hinges or .joints q. In a case in which the door is arranged to turn upon its upper edge the lock is preferably placed upon the said trap or door while the eye or socket D is fitted into the frame p, or the said lock may be placed upon the said frame p above the lower edge of the said trap or door. In the case of sliding doors q, as shown in Figs. 9 and `10, the lock A is secured in onev of the said doors q1ike a mortise-lock, or on thenecessary adjustment of the eye or socket D in order to allow for shrinkage or warping of the doorsor of the posts or jambs without in any way diminishing the security ofthe fastening of the eye or socket to the door frame or jamb. The eye or socket D, instead of being fastened directlyto the door post orjamb C, as heretofore shown, is connected indirectly thereto through the medium of a plate fr', which islet into or countersunk in the said door post or jamb C, and secured thereto by means of two or more screws lr. In the plate 'r is provided a slot r2, of suitable length and width. s s are screws which pass through holes provided in the ange-plate D of the eye or socket D and through the said slot r2 in the plate r. The screws s are screwed into another plate 1f, placed behind the plate fr, which plate t serves as a common A suitable recess C is also provided inthe door post or jamb C, adapted to receive the plate/r and the eX- tremities of the screws s. By means of this arrangement the eye or socket D and the plate z5 can be displaced or adjusted in a vertical as Well as in a horizontal direction, as far as the dimensions of the slot Watford free play to the screws s. Thus, for example, the eye or socket D may bel adjusted in a case `where a mistake has been made in the mounting of either the eye or socket D or the lock through incorrect measurement, and also in a case Where the lower extremity of the bolt has been subjected to much wear and tear, or the door has sunk or warped, or the relative positions of the door audits postor jamb have become altered from anycause, suchas shrinkage or otherwise.

For casesin which the door has shrunk to a considerable extent through the drying of the wood or from other causes, so that the bolt would drop against the edge of the eye or socket, instead of enteringthe hole or aperture in the latter, I provide washers or distance-pieces u, (seen in Figs. 13 and 14.,)^having a slot or slots u', so that they can be IOO IIO

passed over the shanks of the screws s. The said washers or distance-pieces u are made of different thickness, and one or more may be inserted between the liange-plate D of the eye or socket D and the plateK 1', the screws s having rst been slackened. The shape of the washers a is such as to correspond exactly to that of the flange D of the socket D, and their front edges are beveled in the same manner as the front edge of the said eye or socket D. After the insertion of the requisite number of washers and the necessary vertical and horizontal adjustment has been made the screws s are iirmly screwed down again into the plate t, so as to rigidly secure the socket D in position. t

I have indicated in dotted lines in Fig. l1 the position that will be assumed by the washer u, although such washer is not actually shown in position in said figure. It is evident, moreover, that I may somewhat modify the construction and arrangement of my improved latch or lock without materially departing from Having claiml. In a lock or latch, the combination, with a gravity-bolt and the lifter for the same, of one or more tumblers having arms which normally engage a lockingnotch`in the said bolt the nature of my invention. thus described my invention, I

when the latter is in its locking position, and a lifter for said tumbler or tumblers.

2. In a lock or latch, the combination,with a gravity-bolt and a lifter therefor, of one or more gravity-catches adapted to fall into the 3 5 path of the bolt and prevent its withdrawal when the lock is inverted, substantially as set forth.

3. The adjustable eye or socket, consisting of a slotted plate adapted to be secured to the 4o j amb or other part, a nut-plate under the said slotted plate, the socket proper having a flanged plate, and the 'screws which pass through the flanged plate of the socket and the slot in the fixed plate and screw into said 45 nut-plate, all combined and arranged substantially as set forth. v

Ll. The combination, with the adjustable eye or socket, of the slotted washer or distance,

piece, said washer having open slots to en- 5o gage the attaching-screws, form and or socket.

In witness whereof I have hereunto signed and having the size of the flanged plate of the eye my name in the presence of two subscribing 55 witnesses. l

NIELS GEORG SORENSEN. Witnesses:

NERE A. ELFWING, ERNST SvANGvIs'r. 

